Received: 9 April 2019
Accepted: 9 October 2019
First Online: 22 October 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board at the Affiliated Hospital of North Sichuan Medical College. Each author certifies that all investigations were conducted in accordance with ethical principles. The participant involved in the study gave their informed consent and signed and an informed consent form.
: Written consent to publish this information was obtained from the patient. Proof of consent to publish from the patient can be requested at any time.
: The authors declare that they do not have any competing interests.